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22 lines
418 B
JavaScript
22 lines
418 B
JavaScript
/* @flow */
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"use strict"
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/**
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* Find the at-rule in which a rule is nested.
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*
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* Returns `null` if the rule is not nested within an at-rule.
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*/
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module.exports = function findAtRuleContext(
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rule/*: postcss$rule */
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)/*: ?postcss$atRule*/ {
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const parent = rule.parent
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if (parent.type === "root") {
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return null
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}
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if (parent.type === "atrule") {
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return parent
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}
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return findAtRuleContext(parent)
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}
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